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JPL Small-Body Database Browser
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442400 (2011 UQ54)
Classification: Main-belt Asteroid          SPK-ID: 2442400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09995494730343266 1.1598e-07  
a 2.710726737438222 6.1044e-08 au
q 2.439776189243578 3.5885e-07 au
i 2.410747916921926 7.4965e-06 deg
node 46.26998864313155 0.00020038 deg
peri 331.0704324515159 0.00020895 deg
M 359.3687694927357 6.4368e-05 deg
tp 2459003.358330973385
(2020-Jun-02.85833097)
0.00029154 TDB
period 1630.148002317124
4.46
5.5065e-05
1.508e-07
d
yr
n .2208388437665102 7.4597e-09 deg/d
Q 2.981677285632865 6.7145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   data-arc span      6079 days (16.64 yr)  
   first obs. used      2002-11-14  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68657  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:07  

Additional Information
 Earth MOID = 1.44172 au 
 Jupiter MOID = 2.47523 au 
 T_jup = 3.355 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO477088  

442400 (2011 UQ54)          Discovered 2007-Dec-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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